Being a Vice-President can be a thankless job. Other than being a "break in the case of emergency" Presidential replacement and voting to break ties in the Senate the Vice-President doesn't have much power in our political system.
The influence and power of the Vice-President is entirely up to the President. Some Vice-Presidents, most notably Dick Cheney in recent years, have convinced Presidents to give them their own power center and set of responsibilities, or have been tacitly or openly acknowledged to be key Presidential advisers and people who influence access to the President.
But most Vice-Presidents spend their time repeating whatever talking points the Administration wants emphasized, going to funerals, avoiding contradicting the President or otherwise embarrassing the Administration. It's a pretty low bar to reach.
So if you happen to be a Kamala Harris supporter, it's probably a bit of a downer to see that Harris is apparently having a bit of trouble reaching that minimal "meets expectations" B minus job evaluation. Harris' portfolio was supposed to be immigration and voting rights. Nothing substantively progressive has occurred on either of those fronts.